US3119745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preventing oxidation of nuclear reactor coolant channel magnesium sheaths
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1959-04-23
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Granted: 1964-01-28
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Expires: 1979-04-23
Abstract
No abstract record available.
Inventors
- 👤 Caillat Roger
- 👤 Darras Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:21
CPC Classifications
G; G21; G21C; G21C15/00; G21C15/28; C; C23; C23F; C23F11/00; C23F11/02; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
IN A METHOD FOR REDUCING OXIDATION IN A NUCLEAR REACTOR WHEREIN A FLOW OF AN OXIDIZING ATMOSPHERE IS PASSED OVER MAGNESIUM SHEATHS CONTAINING FISSILE MATERIAL, THE STEPS WHICH CONSIST IN BUBBLING AT LEAST A PART OF THE OXIDIZING ATMOSPHERE THROUGH A DILUTE AQUEOUS SOLUTION OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF HYDROGEN FLUORIDE, FLUORINATED METHANE AND ETHANE CONTAINING CHLORINE AND TRIFLUOROMETHYL BENZENE ENTRAINING AT LEAST 2X10**--6 GRAMS OF FLUORINE KPER LITER OF THE OXIDIZING ATMOSPHERE, THEN PASSING THE ATMOSPHERE CONTAINING FLUORINE OVER THE SHEATHS AND MAINTAINING THE ATMOSPHERE AT TEMPERATURES BETWEEN 250*C. AND 500*C. WHEN PASSED OVER THE MAGNESIUM SHEATHS.
Claim 2
Dependent Claim
102 words
IN A METHOD FOR REDUCING OXIDATION IN A NUCLEAR REACTOR WHEREIN A FLOW OF AN OXIDIZING ATMOSPHERE IS PASSED OVER MAGNESIUM SHEATHS CONTAINING FISSILE MATERIAL, THE STEPS WHICH CONSIST IN BUBBLING AT LEAST A PART OF THE OXIDIZING ATMOSPHERE THROUGH A DILUTE AQUEOUS SOLUTION OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF HYDROGEN FLUORIDE, FLUORINATED METHANE AND ETHANE CONTAINING CHLORINE AND TRIFLUOROMETHYL BENZENE ENTRAINING AT LEAST 2X10**--6 GRAMS OF FLUORINE KPER LITER OF THE OXIDIZING ATMOSPHERE, THEN PASSING THE ATMOSPHERE CONTAINING FLUORINE OVER THE SHEATHS AND MAINTAINING THE ATMOSPHERE AT TEMPERATURES BETWEEN 250*C. AND 500*C. WHEN PASSED OVER THE MAGNESIUM SHEATHS.
References Cited (Backward Citations)
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Cited
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Cited
GB443420A
Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-27 | 1967-07-29 | 1968-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-27 | 1971-07-29 | 1972-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-27 | 1975-07-29 | 1976-01-28 | $7700.00 | Window Closed / Lapsed |